Air and oil combined sealing isolator
A combined sealing and oil sealing technology, applied in the direction of engine sealing, engine components, mechanical equipment, etc., can solve the problem that the isolation effect of lubricating oil and compressed air is not very good, and achieve simple structure, low manufacturing cost, and reduced processing cost. Effect
Active Publication Date: 2016-01-27
WUXI GL TUBRO COMPRESSOR
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Problems solved by technology
Due to the straight journal, the isolation effect of lubricating oil and compressed air is not very good
Method used
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Embodiment Construction
[0011] The present invention will be further described below in conjunction with specific examples.
[0012] The gas and oil combined sealing isolator includes a rotating shaft 1, an oil sealing ring 2, an air sealing ring 3 and a gear box body 4. The first oil deflecting ring 1.1, the second oil deflecting ring 1.2 and the gas throwing ring 1.3 are set, the oil sealing ring 2 and the air sealing ring 3 are fixed on the gear box body 4, and the ventilation hole 4.1 is opened on the gear box body 4 The oil sealing ring 2 includes an oil sealing ring body 2.1, an oil sealing ring 2.2 and an oil and gas isolating ring 2.3, and the oil isolating ring 2.2 and the oil and gas isolating ring 2.3 are arranged at intervals and integrally connected to the oil sealing ring body 2.1 On the inner circle, the inner circle of the oil isolation ring 2.2 is embedded between the first oil deflector ring 1.1 and the second oil deflector ring 1.2, and the inner circle of the oil isolation ring 2....
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The invention relates to an air and oil combined sealing isolator. The outer circle of a rotating shaft is provided with a first oil retaining ring, a second oil retaining ring and an air throwing ring, wherein the first oil retaining ring, the second oil retaining ring and the air throwing ring are arranged at intervals. An oil sealing ring and an air sealing ring are fixed to a gear box. The gear box is provided with a vent hole. An oil isolation ring and an oil and air isolation ring are arranged in a spaced mode and are connected to the inner circle of an oil sealing ring body in an integrated mode. The inner circle of the oil isolation ring makes contact with the portion, between the first oil retaining ring and the second oil retaining ring, of the outer circle of the rotating shaft. The inner circle of the oil and air isolation ring is embedded between the second oil retaining ring and the air throwing ring. The inner circle of the air sealing ring is embedded between the air throwing ring and the impeller mounting end of the rotating shaft. The rotating shaft, the gear box and the oil isolation ring define a first oil return cavity. The rotating shaft, the oil isolation ring and the oil and air isolation ring define a second oil return cavity. The oil sealing ring body, the oil and air isolation ring, the air sealing ring and the gear box define an air collection cavity. The air collection cavity is communicated with the vent hole. The air and oil combined sealing isolator can isolate compressed air and lubricating oil in a sealing mode.
Description
technical field [0001] The invention relates to a device for strengthening the sealing and isolation effect of compressed air and lubricating oil in a high-speed centrifugal fan, in particular to an air-oil combined sealing isolator. Background technique [0002] In the prior art, a labyrinth seal is usually used to realize the sealing of lubricating oil and compressed air in a high-speed centrifugal fan. Due to the straight journal, the isolation effect of lubricating oil and compressed air is not very good. Contents of the invention [0003] The purpose of the present invention is to overcome the deficiencies in the prior art and provide an air-oil combined sealing isolator that can strengthen the sealing and isolation effect on compressed air and lubricating oil, has a simple structure and low processing cost. [0004] According to the technical solution provided by the present invention, the air and oil combined sealing isolator includes a rotating shaft, an oil seali...
Claims
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IPC IPC(8): F16J15/16
Inventor 戴勤生
Owner WUXI GL TUBRO COMPRESSOR